BL20 - Communication in CANopen
D301087 0308 - BL20 CANopen4-18
Write (Write to Object Dictionary)
LSB = Least Significant bit → lowest value bit
MSB = Most Significant bit → highest value bit
SCS = Server Command
CCS = Client Command
(see CiA DS-301)
The stated COB-ID refers to the default SDO server.
Note
The information in byte 0 "SCS " can optionally contain the length
information for the transmitted data bytes (see CiA DS-301, Page 9-
21 ff). The information in byte 0 "SCS = 22
hex
" means that no length
information is present.
Attention
If an incorrect data length is given, the error code "Abort SDO Trans-
fer Service" will be generated (see CiA DS-301, Page 9-26).
Byte 0
Byte 0
Byte 4
Byte 4
Byte 2
Byte 2
Byte 6
Byte 6
Byte 1
Byte 1
Byte 5
Byte 5
Byte 3
Byte 3
Byte 7
Byte 7
Index
lsb msb
Index
lsb msb
Sub-Index
Sub-Index reserved
COB-ID = 1537 + Node-ID - 1
COB-ID = 1409 + Node-ID - 1
Client
Client
Server
Data
CCS =
2xh
SCS =
60h